Chemical enterprise-a hmanraw hman tlanglawn ber chu valve hi a ni. Valve dah a awlsam hmel hle a, mahse a kaihhnawih technology zawm loh chuan himna accident a thlen dawn a ni. Vawiin hian valve installation chungchanga experience engemaw zat ka rawn share duh a ni.
1. Thlasik laiin sak laiin negative temperature-ah Hydrstatic test.
A rah chhuah: hydraulic test neih laiin tube chu a freeze nghal vat avangin tube chu a vawt ta a ni.
Thiltih dan: thlasik hman hmain hydraulic test neih tum la, pressure test zawhah tui puak tur, a bik takin valve chhunga tui awm chu net-ah paih chhuah a ngai a, chuti lo chuan valve chu a rust ang, heavy is frozen crack. Project hi thlasik lai, indoor positive temperature hnuaiah kalpui tur a ni a, pressure test zawhah tui chu puak fai tur a ni.
2, Pipeline system hydraulic strength test leh tightness test, leakage inspection pawh a tawk lo.
A rah chhuah: operation hnuah leakage a awm a, hman dan pangngai a nghawng.
Thiltih dan: Pipeline system chu design mamawh leh sak dan tur ruahmanna anga test a nih bakah, pressure value emaw tui level inthlak danglamna emaw chu hun bituk chhunga record a nih bakah, a bik takin leakage problem a awm leh awm loh uluk taka enfiah a ni.
3, Butterfly valve flange plate leh valve flange plate pangngai.
A rah chhuah: butterfly valve flange plate leh valve flange plate pangngai size a danglam a, flange chhung lam diameter thenkhat chu a te a, butterfly valve disc pawh a lian a, chu chuan a inhawng lo emaw, a inhawng harsa lo emaw a tichhia a, valve a tichhia a ni.
Thil tehna: flange plate chu butterfly valve flange lian tham tak tak angin process tur a ni.
4. Valve dah dan a dik lo.
Entirnan: check valve tui (steam) flow direction chu mark nen a inpersan a, valve stem chu hnuai lamah dah a ni a, horizontal installed check valve chu vertical installation lak nan, rising stem gate valve emawsoft seal butterfly valve a nihandle a inhawng lo, hmun khar, etc.
A rah chhuah: valve a chhiat avangin switch enkawl a harsa a, valve shaft hnuai lam hawiin tui a chhuak fo thin.
A tehna: strict takin valve installation instructions for installation angin, open rod gate valve chu valve stem elongation opening height vawng reng turin, butterfly valve fully consider the handle rotation space, valve stem chi hrang hrang chu horizontal position hnuaiah a awm thei lo, hnuai lam chu sawi loh.
5. Valve dahna specification leh model te hian design mamawh a tlin lo.
Entirnan, valve-a nominal pressure chu system test pressure aiin a tlem zawk a; a feed water branch pipe chuan a hmang agate valve a nipipe diameter chu 50mm aia tlem emaw, a tlukpui emaw a nih chuan; fire pump suction pipe chuan butterfly valve chu a hmang a.
A rah chhuah: valve hawn leh khar dan pangngai a nghawng a, resistance, pressure leh hnathawh dangte a siamrem bawk. System hnathawh tir pawh nise, valve chhiatna chu siamthat a ngai a ni.
Thiltih dan: Valve hrang hrangte hman dan tur hriat chian la, design mamawh angin valve specification leh model te thlang rawh. Valve-a nominal pressure hian system test pressure-a thil mamawh a tlin tur a ni.
6. Valve inthlak danglamna
Nghawng:check valve a ni, pressure reducing valve leh valve dangte hian directionality an nei a, inverted-a dah a nih chuan throttle valve hian service effect leh life a nghawng ang pressure reducing valve hian hna a thawk lo tak zet a, check valve hian hlauhawm pawh a thlen dawn a ni.
A tehna: general valve, valve taksaah direction sign awm; in case not, valve hnathawh dan angin dik taka hriat tur a ni. Gate valve hi inverted tur a ni lo (chu chu hand wheel down tihna a ni), chuti lo chuan boncover space-a medium chu rei tak a awm tir ang a, valve stem chu a tichhe awlsam ang a, filler thlak pawh a harsa hle ang. Rising stem gate valve te hi lei hnuaiah an dah lo va, chutiang a nih loh chuan exposed valve stem chu moisture vangin a corrode thin.Swing check valve a ni, installation chu pin shaft level a nih theih nan, chutiang chuan a flexible.
Post hun chhung: Dec-05-2023
